Fix Windows Security Service Not Running for Antivirus - Microsoft Teams High CPU After Update: Fixes That Work-Windows Security Fix Checklist

Updated 2026-06-18 20:38:47developer-tools
Fix Windows Security Service Not Running for Antivirus - Microsoft Teams High CPU After Update: Fixes That Work-Windows Security Fix Checklist
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.